Q: Compare and contrast the embryonic development of protostomes and deuterostomes
A: Metazoans are divided into protostomia and deuterostomia based on the development of the embryo.…
Q: Identify the stage(s) of embryonic development in whichcross sections of all chordate embryos…
A: Embryology is the study of development and growth of fertilized egg(zygote) into mature embryo. The…
Q: What selective forces might limit the stage of development at which humans are born?
A: Introduction: The evolution of humans are influenced by the following five factors: Natural…
Q: What are placental mammal ? Explain the role of placental mammal ?
A: Placental mammals are a diverse group, with nearly 4000 species described, the majority of which are…
Q: Is the mammalianembryonic development director indirect?
A: The process of embryonic development is otherwise known as embryogenesis. Fertilization is the…
Q: Protostomes and deuterostomes can be classified based ona. cleavage pattern.b. destiny of the…
A: Metazoans are divided into two, depending upon the embryonic development : Protostomes and…
Q: prepare sketches Eight-cell sea urchin embryo
A: Step 1 Phylum Echinodermata is of spiny skinned, triploblastic, enterocoelomic, deuterostomic…
Q: List four differences between protostomes and deuterostomes.
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: What structural adaptation in chickens allows them to lay theireggs in arid environments rather than…
A: The vertebrate embryo requires an aqueous environment for their development. The amphibians and…
Q: Spiral cleavage can occur in both deuterostomes and protostomes (True/False)?
A: Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops…
Q: With an help of properly illustrated drawings, explain the difference in the development of…
A:
Q: What are some advantages of the pronounced cephalization that occurred as vertebrates evolved from…
A: Answer- Animals are adapted and evolved so that they can survive and reproduce well. In tetrapods…
Q: Humans have a coccyx at the end of the vertebral column. What structure common to all vertebrate…
A: The coccyx is a triangular structure of bones near the bottom of the backbone, just below the…
Q: Describe the differences between protostome and deuterostome development.
A: Protostomes are organisms whose blastopores develops into a mouth. In comparison, Deuterostomes are…
Q: Discuss how humans, as chordates, possess all fourcharacteristics either as embryos or adults.
A: All the chordates posses the following diagnostic characters either in the embryonic or adult…
Q: What is developmental mechanism?
A: In biology, a mechanism is a system of causally interrelated elements and processes that result in…
Q: Explain how egg rotation and gravity determine anterior posterior patterning in chick embryos
A: Anterior posterior pattern formation is the regionalization process in which specific areas of cell…
Q: describe direct and indirect development and name some animal groups that have each type of…
A: Difference between the direct ns indirect development is listed below.
Q: what characteristics are shared among bird embryos, pig embryos, and human embryos?
A: There are several similarities between the embryos of different species of animals and birds. It was…
Q: At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula…
A: THE STAGE OF DEVELOPMENTIS BLASTULA STAGE.
Q: Briefly discuss the important events occurring during gastrulation and neurulation in avian…
A: Gastrulation is a process during embryo development where the zygote undergoes cleavage and forms a…
Q: Define the following terms with respect to mammalian development •Chormesodermal mantle •Somites…
A: Mammalian development It is defined as the process of division of cells and differentiation of cells…
Q: Explain the developmental and functional similarities and differences between: 1. Avian yolk…
A: Three fetal membranes are present in mammals; yolk sac, amnion, and allantois. Yolk sac and…
Q: In the development of amniotes (reptiles, birds, mammals), the defining feature of gastrulation…
A: Answer is : primitive streak The beginning of gastrulation is marked by the appearance of a groove…
Q: Explain the evolutionary advantage of the amniotic egg
A: Amnion is a membrane which enclose the embryo after it's formed.Embryo is the initial stage of…
Q: How does developmental biology provide evidence of a common ancestry for vertebrates as diverse as…
A: Evolution is a gradual change that occurs in populations. Mutation, genetic drift, natural…
Q: If radial cleavage occurs during development, the animal will be a deuterostome (True/False)?
A: Deuterostome in greek mean second mouth. It make a nephrozoa clade with protostomia clade. they are…
Q: Which type of cleavage leads to the development of a bird?
A: Cleavage refers to repeated cell division in the fertilized egg. Cleavage leads to the formation of…
Q: Describe the development of the notochord. Include the terms primitive pit, notochordal process,…
A: The Notochord is a cartilaginous skeleton that supports the body in the form of a rod. It is found…
Q: Briefly explain how and why the yolk distribution in mammalian eggs has changed from their…
A: According to Bartleby expert, when multiple questions are posted we are allowed to answer the first…
Q: Protostomes and deuterostomes typically differ in
A: Protostomes are clade of animals containing phyla including the arthropods,annelids and…
Q: are the essential similarities and differences between the development of sperms and eggs in mammals
A: Both sperm and ovum are haploid having 'n' number of chromosome. Both undergoes mitosis as well as…
Q: Can the dorsal lip of the blastopore inducecells in another part of the amphibian embryoto change…
A: The dorsal lip of a blastopore is a structure formed during the early development of the embryo. The…
Q: Draw a diagram that includes the varlous characteristics of deuterostome development: bilateral…
A: Bilaterians are animals whose embryos show bilateral symmetry. That is the embryo is divided into…
Q: How does von baer's law of development relates with the development of the frog embryo? evidences?
A: Von Baer's laws of development These are rules proposed by Karl Von Baer. The laws demonstrates the…
Q: Compare the role of notochord in the early development of vertebrates and invertebrates.
A: introduction Animals lacking a skeletal system are known as invertebrates. As a result, the majority…
Q: Describe how early developmental processes in Eutherian mammals are different from those of other…
A: Hi dear, thanks for your question.here is answer you need .can you please give an upvote to me. The…
Q: Explain the developmental and functional similarities and differences between: Avian amnion and…
A: The membrane , that closely covers the human and various other embryos when first formed, it is…
Q: What is the fate of the four extraembryonic membranes in embryos of placental mammals?
A: Any of the tissues, derived from the fertilized egg, that encase or in any case add to the help of…
Q: prepare sketches of Four-cell sea urchin embryo
A: Sea urchins are spiny, globular animals belonging to phylum Echinoderms, in the class Echinoidea.…
Q: Describe the phases of embryonic development in a chordate. Recognize the difference between a…
A: Gastrulation is the process during which three cell layers develop in the embryo: these three germ…
Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…
A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…
Q: Distinguish two mechanisms by which flatworms supply yolk for their embryos. Which system is…
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: Compare gastrulation in the frog and the chick
A: The sperm and egg fuse to together to form a zygote, after eighth cell stage, the blastula is…
Q: Discuss the adaptations of Labeo?
A: Fishes are gill-bearing aquatic vertebrate animals. The earliest organisms that can be first…
Q: Prepare sketches of the following Two-cell sea urchin embryo
A: Taxonomic classification is the method of classifying different organisms based on their…
Q: What is the importance of the pharyngeal pouches in development? Discuss.
A: In embryology, pharyngeal pouch is defines as "any of a series of evaginations of ectoderm on either…
Q: Briefly summarize the main phases of animal development from fertilization to organogenesis, and…
A: After a sexual intercourse , the fertilization process takes place. Once the fertilization takes…
Q: Describe the Anatomical Changes from Early to Late Stages Species Embryo (A-F) Human | Chicken…
A: Once Charles Darwin originally introduced the hypothesis that all life form descended from a common…
List the advantages of evolving a deuterostome pattern of development.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- Briefly describe how the HoxC-6 gene affects vertebrate development.The figure below shows a time-dependent decrease in size (F to H) of a Hyloxalus frog's yolk plug (labeled with "yp") due to morphogenic movements of vegetal cells towards the internal of the embryo. What major stage of embryonic development is shown in the figure above? Choose the best answer. E 10 F st 12 H st 12.5 O Gastrulation O Fertilization O Blastulation O Cleavage FormationBriefly discuss the important events occurring during gastrulation and neurulation in avian embryogenesis, with emphasis on the importance/role of the following: the epiblast layer; the hypoblast layer; the primitive streak; and the Hensen’s node. Include a brief discussion on how the extraembryonic membranes arise from the germ layers formed during gastrulation.
- What experimental evidence demonstrates that molecular gradients in the egg control development?Which of the following describes the importance of the formation of the morula in earlyhuman development?A. it is the process that initiates gastrulationB. it is the process that initiates the formation of the epiblast and hypoblastC. it is the process that initiates the formation of the trophoblast and inner cell massD. it is the process that initiates the formation of the trophoblast and epiblastExplain the developmental and functional similarities and differences between: 1. Avian yolk sacs and mammalian yolk sacs 2. Avian chorions and mammalian chorions 3. Avian allantois and mammalian allantois
- Study the sea star development slides, including early and late stages and identify the following stages and structures: zygote, two cell stage, morula (stage), blastula (stage), blastocoel (cavity), archenteron (cavity), ectoderm (layer), endoderm (layer), gastrula (stage). **See Table 52.1, Section 52.3 & 52.4 in textbook ** Why is it useful to study the development of sea stars (Echinodermata) when studying human development? What do the two have in common?Identify structures a–e in the following diagram of week 10 of development.Describe the differences between protostome and deuterostome development.
- Describe the process of mammalian and avian gastrulationIdentify the characteristics of protostome development: Select one or more: O spiral cleavage pattern indeterminate cleavage radial cleavage pattern O blastopore becomes the anus O blastopore becomes the mouthNeurulation in model vertebrates and in fly follows soon after gastrulation.Do vertebrates and fly-related invertebrates adopt different strategies forneural development, both at the cellular and molecular level?